<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8>
<style>
table {
  margin: 10px;
  border-spacing: 0;
  border-collapse: collapse;
}
td {
  border-top: 10px solid rgba(0,0,255,0.3);
  border-right: 20px solid rgba(255,0,0,0.3);
  border-bottom: 30px solid rgba(0,255,0,0.3);
  border-left: 40px solid rgba(255,0,255,0.3);
  width: 50px;
  height: 50px;
  padding: 0;
}
</style>
</head>
<body>

<div>
<table>
<tr><td> </td></tr>
</table>
</div>
